package com.zxxy.gulimall.cart.vo;

import lombok.Data;

import java.math.BigDecimal;
import java.util.List;

/**
 * 整个购物车
 *      需要计算的属性，必须重写他的get方法。保证每次获取属性都会进行计算
 */

@Data
public class Cart {

    private List<CartItem> items;

    private Integer countNum; // 商品数量

    private Integer countType; // 商品类型的数量

    private BigDecimal totalAmount; // 商品总价

    private BigDecimal reduce = new BigDecimal("0.00"); // 减免价格

    public List<CartItem> getItems() {
        return items;
    }

    public void setItems(List<CartItem> items) {
        this.items = items;
    }

    public Integer getCountNum() {
        int count = 0;
        if (items!=null && items.size()>0){
            for (CartItem item : items){
                count+=item.getCount();
            }
        }
        return count;
    }

    public void setCountNum(Integer countNum) {
        this.countNum = countNum;
    }

    public Integer getCountType() {
        int count = 0;
        if (items!=null && items.size()>0){
            for (CartItem item : items){
                count+=1;
            }
        }
        return count;
    }

    public void setCountType(Integer countType) {
        this.countType = countType;
    }

    public BigDecimal getTotalAmount() {
        BigDecimal amount = new BigDecimal("0");
        // 1、计算购物项总价
        if (items!=null && items.size()>0){
            for (CartItem item : items){
                if (item.getCheck()){
                    BigDecimal totalPrice = item.getTotalPrice();
                    amount=amount.add(totalPrice);
                }
            }
        }
        ///2、减去优惠总价
        BigDecimal subtract = amount.subtract(getReduce());
        return subtract;
    }

    public void setTotalAmount(BigDecimal totalAmount) {
        this.totalAmount = totalAmount;
    }

    public BigDecimal getReduce() {
        return reduce;
    }

    public void setReduce(BigDecimal reduce) {
        this.reduce = reduce;
    }
}
